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Blazer is falling on it's face

Discussion in 'The Garage' started by crroy71, Mar 30, 2004.

  1. crroy71

    crroy71 Registered Member

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    Blazer is falling on it\'s face

    Hey, everyone.

    I need some advice. I have an Edelbrock Q-jet carb on my 383, and sometimes at WOT it will fall on it's face as soon as it shifts into 2nd. As soon as I back out of the throttle just a tad, it will pick back up. It feels like the fuel is being cut off as soon as it shifts.

    My first thought was fuel filter. I have a GM high performance mechanical pump on it, so surely it can keep up.

    Any ideas?

    Thanks,
     
  2. mudjunkie 82

    mudjunkie 82 1 ton status GMOTM Winner

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    Re: Blazer is falling on it\'s face

    sounds like the Accelerator pump?????????
     
  3. crroy71

    crroy71 Registered Member

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    Re: Blazer is falling on it\'s face

    Is there any way I could tell for sure?
     
  4. mouse

    mouse 1/2 ton status

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    Re: Blazer is falling on it\'s face

    The accelerator pump only works while you are moving the gas pedal downward, squirting gas in when there is not enough vacuum to draw it in through the normal carb circuits (its not the accelerator pump). My guess would be a problems with the secondaries. I'm not an expert on this type of carb, but it sounds like a malfunction with the secondary circuit, possibly a vacuum leak on that side of the carb...
     
  5. crroy71

    crroy71 Registered Member

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    Re: Blazer is falling on it\'s face

    Thanks for the info, I will se if I can find something with the secondaries.
     
  6. Thunder

    Thunder 3/4 ton status

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